US1353810A - Portable testing apparatus for water-distributing systems of railway passenger-cars - Google Patents

Description

H. A. MONTGOMERY PORTABLEl TESTING APPARATUS Foa WATER. ms'mum SYSTEMS 0F RAILWAY PASSENGER CARS. APPucATloN mtu JAN. 14, 1920.

- PatentedSept. 21, 1920.

4 SHEETS-SHEET l.

.NYSA KNT H. A. MONTGOMERY. v

PORTABLE TESTING APPARATUS fox wATER DTSTRTBUTTNS SYSTEMS oE RAILWAY PASSENGER CARS.

APPLICATION FILED JAN. I4. 1920.

Patented sept. 21,1920.

4 SHEETS-SHEET 2- A a Q) H. A. MONTGGMERY.

PORTABLE TESTING APPARATUS PoR WATER DTSTHIBUTTNG SYSTEMS 0F RAILWAY PASSENGER CARS.

lAPPLICATION FILED JAN. I4. 1920.

Patented Sept. Z1, 1920.

4 SHEETS-SHEET 3.

l H. A. MONTGOMERY. PORTABLE TESTING APPARATUS FOR WATER DTSTRTBUTTNG SYSTEMS 0F RAILWAY PASSENGER GARS.

A'PPLlCATlON FILED JAN. I4. i920.

Tgm 0 Patented sept. 21,1920.

4 SHEETS-SHEET 4.

M l I "l A-2** 311-1101 1 Tot HARRYl A. MONTGOMERY, or BALTTMORR, MARYLAND. l

PORTABLE TESTING APPARATUS rOR WATER-nrsTRi-BUTING'sYsTnMs OF'RAIr '.WAY

' rmessinaeiiP.-CARS. f c, f

issasio'.

To all whom t mag/concern.' i Be it known that I, HARRY. A. MONT- GOMERY, a citizen of the United States of America, and a resident of the city; of Balti- Vso more, tate ofv Maryland, have invented certain new and useful improvements in Portable Testing Apparatus for "Water-Distributing Systems of Railway Passenger-Cars, whereof the following is a specification.V v

In railway passenger cars of the Pull- -man type and others of modern construc.

tion, the water for supplying the basins and water lclosets is maintained and distributed under air pressure from `a tank beneath the car, the compressed air being obtained from the train brake apparatuswhen the car is connectedin train and from the station air plant when the car is detached from the train and stalled in the station or yard. IThe air pressure -of the station airplant'and of the brake system being at a high point,'

-brake system and delivers it on the outlet sidetoward 'the air reservoir of the water distributing system'l at a pressure notto eX- ceed fifty or sixty pounds, and governs Vthe passage of air from the auxiliary air reservoir of thebrake system to the air pressure reservoir whichrfurnishes air pressure to VVthe water tank;4 'T he reducing valve reduces .the pressure of the air requirements of the water distribution. Frequent testing of these valves is necessary in order to determine whether or not they are in proper working condition. l

The object of this vinvention is to provide Va simple 'portable apparatus adapted for testing the governor valve and the reducer valve of individual cars without removal thereof from the system. yln case said valves 'or either of them are found defective then only are they. detached from the system and properly adjusted or corrected. This apparatusalso'provides means for testing the corrected vvalvesat the cark to ascertain vwhether or not they are properly adjusted before restoration to .the system, l .avoiding Specification of Letters Patent;l

Vthe tester on line'-t of Fig. 8. Fig. 5' representsk on an enlarged scale brake system to the `ed by pipe F with the necessity of taking vthem to the shop for such testing. 'ln this waytime is saved,

and'delay of trains avoided.

Figure l of paratus in its preferred form of embodi ment, connected up with 'the water` supply Ysystem of a car.;

, rammed' Sert-@1920. iippiicationriiiea January i4, 1920. seria1No.f351,29e. l`

y the accompanying drawings 11 represents diagrammatically Ythis testing: ap-

TEig. 2 "represents va plan viewV of this l A testing apparatusv on an enlarged scale'detached from the car equipment and showing a governorvalve in position to undergo the secondary test thereof aftercorrection.

of defects and preparatory to replacementA in the system. v

ig. 3 represents a side elevation. of the apparatus showing the reducer valve detached fromthe car'equipment and in posin tion on the tester for undergoingthe secondary' test. Fig.` 4L represents `a transverse section of a longitudinalsection of a retardingfdeviee a for preventing asudden pressure fromthe ,high pressure sidev exerting undue impulse on the gage. y Fig. 6 represents a transverse section on line 6-6 of Fig. 3. f 's Similar reference responding partsxiii the different gures.

characters indicate cor.- A

In Fig. l is shown the usual arrangement of the water vdistribution system of `Pullman cars and of modern railway coaches, iny cluding the Westinghouse governor valve and the reducing valve.` -In the` passenger Vcar equipment this waterdistribution-sys.

tem comprises a water tank A from'whieh the waterl is supplied underadeterminate air pressure to thel toilet rooms of the car, an air pressure reservoir B having a pressure gage o, a pipe C connecting said reservoir with said tank, an air supply pipe D connected at its inner end Ywith said pipeV C and adapted for connection atfits outer end with the source of supply, andan auxiliary air reservoir E of the y the supply pipe D through the strainer D" thereof. A goveri.

nor valve Gis disposed in the pipe" D Vbetween -the .auxiliary reservoir'E and the air pressure reservoir B, and jaredu'cing' valve? H is. disposed in the pipe@ betweenl` the con-V -v nection therewith O the pipe D andthe wa- A Y brake system connectter tank A. A iive-way cock l is disposed in the pipe C adjacent to the water tank and is provided with ports and connections for the water supply to the tank and for the waterA delivery from the tank and for the escape of air from the tank when desired. The pipeV C is provided with a check valve d, with a stop cock l and with a gage L disposed between `the connection of the air supply pipe D and the air pressure water tank A, with a stop cock lf/l between said tank A andthe live-way `cock l and with a stop cock N between the connection of said pipe l) and the air pressure reservoir B. These stop cocks are open when the actuating handles are disposed in'transverse relation to thepipe.

Y The governor valve G is setto be actuated at a predeterminate pressure of usually not less than fifty or sixty pounds. The reducing valve lll is usually adjusted to deliver twenty-two pound pressure on the water in the water tank for forcing it throughout the car. Necessary adjustments of this valve are made by the nut at the top thereof.

The foregoing lettered description relates to parts of the car equipment which are old and well known and constructive details thereof are not herein necessary. An example thereof is illustrated in the catalogue of lvVestinghouse Air Brake Company in Part Catalogue No. 32171 of December 1910.

This testing apparatus 'for determining whether or not the governor valve and reducing valve hereinbefore referred to are in proper condition consists of a portable device comprising a main pipe l0 provided at one end with a coupling member ll adapted to be connected with the air-hose of a station air pla-nt orof the train system and at the other end with a coupling member l2 adapted to be connected with the air supply pipe l) of the water distrfbution system ofan individual car. This pipe has a stop cock 13 which is normally open, the open position of the actuating handle being` transverse to the pipe in reverse of the usual construction.

A testing reducing valve 2O is mounted in the pipe l0. This testing reducing valve is of the same construction as the governor valve G of the water distribution system and is set to operate at alower pressure than said system governor valve, the testing reducing valve being at forty five degrees whereas the system governor valve is set at fifty degrees. This pipe l0 and its reducing valve 2O are utilized in testing the governor valve of the car when in position in the. water distribution system as lhereinafter described.

A by-pass pipe 30 extends substantially 1 parallel. ,with the main pipe l0 and a lateral pipe'l is connected at one end with said Aadapted to receive a system governor val main pipe between the stop cock 13 and the testing reducing valve 20 and at its other end with said by-pass pipe near its rear end. A transverse pipe 32 is connected at its off end with the front end of said bypass pipe and a downward pipe 33 connects said transverse pipe 32 with the main pipe l0 in front ofthe testing lreducing valve 20.' A valve 3A in the off end of said pipe 32 is operative to close communication between the by-pass pipe 30 and the transverse pipe 32. An upward elbow extension 35 is connected with the near end of the transverse pipe 32 and carries a four-way coupling 39 to which is attached a pressure gage 36and a blow olf cock 37 therefor. A four-way coupling 38V connects the pipes 32, 33 and 35 and another hereinafter described.

A retarding device Ll0 is mounted in the by-pass pipe 30. This retarder conprises coupled members l-l and A2 carrying an intervening disk 43 provided with a minute port de, through which the air is made to pass. The purpose of this retarder is to prevent shock and injury to the gage by preventing' high tension air from the source of supply coming suddenly in contact with the gage. ln other words this retarder permits the air to pass through slowly so as to build up the pressure gradually on the farther side thereof.

A short test tube 5()V is mounted in the coupling 39 atf-Uhe upper end of the elbow pipe 35 and entends rearward therefrom. This test tube is provided with a stop cock 5l and at its rear end with a coupling 52 G for testing. The by-pass pipe 30, the test tube 50 and the intermediate connections just hereinbefore described, are employed as hereinafter described in testing the governor valve G when detached from the system.

A test tube member 60 for a detached reducing lvalve H is connected by a double elbow pipe 6l with the upper branch of the four-way coupling 38 and extends rearward substantially parallel with the by-pass pipe 30 with which it cooperates. This test tube member is provided with a stop cock 62 and at its rearI end with a coupling 63 adapted to receive one side of the reducing valve to be tested. The by-pass pipe 30 in rear of the lateral connecting pipe 3l is provided with a stop cock 64e. This by-pass pipe has at its rear end an upward extension 65 .which is connected by an elbow 66 with a forward extending test member 67, which carriesY a coupling 68 adapted topreceive the other side of the reducing valve to be tested. The by-pass pipe 30, test tube member 60, test tube member 67y and the connecting elevments just hereinbefore described are employed as hereinafter described in testing V ducing valve ll-l of the system be in proper working condition, air will pass said `valve and be delivered at the water tank side thereoi2 at a pressure oic twenty two pounds to the inch, which will be indicated on the gage L in the pipe C. 1t the vage indicates a pressure below or above the desired point oiC twenty two pounds to the inch, or thereabout, it is detective and must be removed for correction. f

After repairing or correcting the system reducing valve lil it is mounted. in the testing apparatus. between the test- tube members 60 and 66. The cock 51 is closed, the valve Se closed and the cocks i3, 62 and 64 are opened. rlhen the passes from the pipe 10 through the lateral branch pipe 3l into the by-pass pipe 30, thence throughthe upward extension 65, elbow 66 and test member 6? into and through the reducin` b b valve H to be tested ,thence through the test member 60, through the double elbow pipe 6l, the four-way coupling 88, through the downward pipe 33 from said coupling' into the pipe 10 in front of the reducing valve 20 and thence into the car hose which is connected with thecoupling 12. rlhe car hose acts as a reservoir in which to build up back pressure, the angle cock (not shown) in the car which closes said hose to Vthe interior pipe system being shut off. The back pressure as it is built up is indicated on the lgage 36. As soon as a pressure of twentytwo pounds to the inch is registered it is evident` that the reducing valve is correct. lf the pressure on the gage is in excess of or below twenty two pounds or other desired setting of said reducing valve H said valve is readjusted until its proper passing pressure is indicated on the gage. rlhis is done by removing the cap and adjusting the tension screw of the reducing valve in amanner well known to those skilled in the art. When these tests show through the gage 36 a proper working condition of the ref ducing valve H it is removed from the testing apparatus and replaced in its proper position inthe car equipment and the work is` completed.

This invention is not limited to the partiular embodiment hereinbefore described; on the contrary it includes various embodiments and variations ot parts withinthe scope ci the following claims. Y

1 claim as my invention: l

l. A portable combined situ and individual testing' apparatus for the water supply system of an individual railway car,

Vsaid apparatus comprising a situ testing means, including a piping, brake hose coupling members, a testing reducing'valve and an air gage connected therewith, operative in connection with the system for testing therein, an individual the governor valve of the system while in situ therein, an individual testing means including an extension connected with said piping and adapted to receive said governor valve tor testing'when detached from the system, and means adapting said apparatus to perform said testing functions successively.

2.v A portable Vcombined situ and individual testine` apparatus for the water supply system of an individual railway car, said apparatus comprisinga situ testing means including a piping, brake hose coupling members,l a by-pass pipe and an air gage connected wit i said piping, operative in connection with the system for testing the reducing valve or" the system while in situ testing means, including .tube extensions adapted to receive said. reducing` valve, for testing said reducing valve when detached lrom the system, and means adapting said apparatus to perform said functions in succession.

3. portable combined situ and individual testing rr-pparatus for the water' supply system or an individual railway car, said apparatus'comprising a situ testing means, including a piping, brake hose coupling members, a testing reducing valve and an air gage connected'with said piping, operative in connection with the system while in situ therein, a situ testing means including 'a by-pass pipe connected with said piping, operative in connection with thesystem for testing the/reducing valve thereoin while in situ therein, an individual testing means including extension connected with said piping and adapted to receive said governor 'valve for testing Vwhen detached from the system, individual testing means, including tube extensions connected with said piping, adapted for testing said reducing valve when detached from the system, and means adaptingv said apparatus to perform said functions oney after another.

e. A testing 'apparatus i'or water distributing systems of railway cars comprising a main pipe provided at its opposite ends with brake house coupling members adapted respectively for connection with the brake hose coupling member of an air supply plant and the brake hose coupling member orn the air supply pipe of said water distributing system, a testing reducing valve mounted in'said pipe and adapted to receive the high pressureainof an air plant on one side and pass it through ata comparatively low pressure on the other sideand an air gageconnected with said pipe on the low side of said testing reducing valve.

5. A testing apparatus for water distributing systems of railway cars comprising a piping provided at its opposite ends with brake 'hose coupling members respectively adapted for connection with the brake l member of the air Y said piping air gage hose coupling member of the air supply plant and `with the brake hose coupling supply' pipe of the water distributing system, a retarder disposed in between said coupling members and adapted to pass the high pressure air entering from the source to and a gage mounted in said piping.

6. A testing apparatus for water dis- A tributing systems of railway cars comprising a main pipe provided atv opposite ends with coupling ymembers adapted respectively for connection with an air supply plant and the air supply pipe of the water distributing system, a testing reducing valve mounted in said pipe and adapted to receive the high pressure air of the air plant on one side and pass it through at a compara-v tively low pressure on the other side, an connected with said pipe on the ,low side of said testing reducing valve, and

a by-pass pipe connected to said main pipe on opposite sides of said testing reducing valve and provided with a retarder which permits the high pressure air to pass slowly through said'by-pass pipe. A

7 A testing apparatus for water distrib:

uting systems of railway cars comprising a main pipe provided at its opposite ends with coupling members adapted respectively :tor connection with an air supply plant and the air supply pipe of the water distributing system, a testing reducing valve mountedin said pipe and adapted to receive the high pressure air of the air plant on one sidev and pass it through at a comparatively low pressure on the other side, an air gage connected with said pipe on the low side of said testing reducing valve, a by-pass pipe connected to said main pipe on opposite sides of said testing reducing valve and provided with a retarder which permits the high pressure air to pass slowly through said by-pass pipe, and a valve for closing communication between said by-pass pipe and said main pipe.

8. A testing apparatus for water distributing systems of railway cars comprising a main pipe provided at its opposite ends with coupling members adapted respectively for connection with an air supply plant and the air supply pipe of the water distributing system, a testing reducing valve mounted inl said pipe and adapted to receive the high pressure of the air plant on one side and high pressure air to pass slowly through said by-pass pipe, a pipe connected with said by-pass pipe and gage, a stop cock in said last named pipe, and a test tube adapted to the car system, i

receive one sideof a governor valve of said' Y fior connection-with an air supply plant and the air supply ing system, a `testing reducing valve mount pipe oi the water distributf system when detached Jfor secondary test-` at its lopposite ends Y with coupling members adapted respectively ed in said pipe and 'adapted to receive the high pressure air or" the air plant on one I side and pass it through at a comparatively low pressureon the other side, an air gage connected with said pipe vron thD low side or said testing reducing valve, a byspass pipe connectedto said mainpipe on opposite Y sides of said testing reducing valve andpro-k vided with a retarder which permits the4 to pass slowly through high pressure air said by-pass pipe, a valve for closing'c'ommunication between said by-pass pipe and said main pipe, and test tube members connected with opposite ends'o said by-pass pipe and adapted toy receive between ythem the reducing valve oic the` car system whendetached Jfor secondary testing and cocks for i controlling said test tube members,V i

10. rlhe combfnation `with a water tank for supplying water to the toilet rooms of a railway car, an air reservoir, a pipe connecting said air reservoir and water tank, an air'supply'pipe connected with said connecting pipe, a governor valve located in said air supply pipev and adapted to `receive high pressure air on one side andpdeliver., y the it at a vdeterminate lower pressure on ico other side, a reducingvalve located in said y 'connecting pipe and adapted to receive airy on `its inlet side atthe delivery of said gov ernor valve and toY deliver Yit on itsoutlet side at a lower pressure, a pressure gage on the delivery sideof said reducing valve, a gage between said governor valveand said reducing *valve, of a portable apparatus transferable from car to car and comprising a main pipe provided at its opposite ends with coupling members adapted respectively for connection with'an air supply plant and with said air supply pipe of said water distributing system, a testing reducing valve mounted in said pipel and adapted to receive the yhigh pressure air of the air Vl plant on one side andY pass it through on the other side at a pressure approximating but below the pressure of saidgovernor valve, and an air gage connected with said pipe on the low side of said testing reducing valve.

l,11. yllhe combination for supplying water tothe toilet rooms of a railway car, necting said air reservoir and water tank,

an air supply pipe connected with said con- ,Y v i I and' an air reservoir, a pipe conf,l

iio

with a water tank isoV VValve, and

on its inlet side et the Vdelivery .piessuie o seid soveinei' Veive and to deliver en iis bew en seid gevefnoi Valve and reducing veive, Wih portebie eppeiatus mnsfefabie irem Ceiq "to csi and Comprising e piping provided at its opposite ends with couping members respectively foi Coniieien with a supply pieni, sind be supply pipe Of he Water disi'ibutin'g sysem, e Tetaider disposed in seid piping; between seidV Coupling membeis and adapted to pass the high 'piessure sii' eneiing fiom she source "to the es? system., and a gege mounted in seid piping.

HARRY L MONTGOMERY. Witnesses FRANK CHASE Simms, GERTRUDE BORNET.

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